.nav{
    height: 200px;
    width: 100%;
    background: greenyellow;
}

.comtainer{
    height: 300px;
    width: 100%;
    background: cyan;
}

.comtainer-right{
    height: 100%;
    width: 40%;
    background: darkgreen;
    float: left;
}

.comtainer-right{
    height: 100%;
    width: 60%;
    background: lightcoral;
    float: left;
}

.footer{
    height: 200px;
    width: 100%;
    background: yellow;
}